Sirius-2 Series Hand and Foot Surface Contamination Monitors
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Features
- Full hand and foot coverage with only four detectors for the most cost effective solution
- Superior geometry, covers hands, cuffs and feet
- State-of-the-art data logging and information screens
- Maintenance without tools
- Multiple voice prompts
- Color LCD screen panel
- Light sensors (no moving parts)
- Available long reach frisker to cover personal articles
Description
The Sirius-2 range of monitors provides the optimum balance between cost and coverage for hand and foot applications. Monitoring the palms and backs of the hands in two steps allows for the highest level of coverage. In most cases this can be done without increasing the overall count time which is governed by the foot detectors. Monitoring in this way reduces the overall cost of the monitor by eliminating the need for two detectors and their accompanying preamps.
The Sirius-2B is optimized for beta detection with a sealed proportional detector.
The Sirius-2AB is optimized for alpha and beta detection with gas flow proportional detectors.
The Sirius-2BX is identical to Sirius-2B except that detectors are filled with xenon for higher efficiencies in detection of medical isotopes.
Options
Alpha Numeric Keyboard
Industry standard full function ASCII keyboard for setup, calibration and
diagnostic purposes. At least one keyboard is required per facility, which
can be attached inside the cabinet door.
Hand-Held Tool/Body Frisker
An integral frisker is available to enhance the monitoring capabilities.
The frisker body incorporates an amber LED to indicate count rate, a beeper for audible indication and a red LED for alarm. The LCD displays the digital/analog ratemeter results plus the current background level, alarm point and highest count rate achieved during current frisk.
When not in use, the frisker continuously monitors background. The Sirius-2B use a Model PC-126CH sealed proportional frisker (126 cm2, 4.5 mg/cm2) that has excellent response to beta/X-ray radiation. The Sirius-2AB uses a Model LFP-100DHP frisker (100 cm2, 0.8 mg/cm2) that has excellent response to alpha/beta radiation. Both friskers have retractable cables which provide up to 3 m (10 ft) of frisking range. The alpha frisker incorporates the gas flow in the same cable.
Local Area Network (LAN)
For automatic and remote communication plus real time monitoring of unit operation,
a LAN hardware and software package is available. This includes a program which
provides remote control of monitor setup, software upgrade, and service diagnostics
plus bi-directional "chat" mode between on-site technician and the central computer
(service administrator).
Detector Specifications and Efficiencies |
Sirius-2AB |
Sirius-2B |
Sirius-2BX |
Detector Model/Quantity |
LFP-400 (x4 units) |
PC-366C (x4 units) |
Xe-366c (x4 units) |
Moveable Hand Detectors |
Yes |
No |
No |
Detector Type |
Gas Flow Proportional |
Sealed Proportional |
Xe Sealed Proportional |
Radiation Monitored |
Alpha/Beta |
Beta |
Low Energy Gamma/Beta/X-ray |
Window Area Per Detector |
400 cm2 |
366 cm2 |
366 cm2 |
Window Surface Density |
0.8 mg/cm2 (Mylar®) |
4.5 mg/cm2 (Ti) |
4.5 mg/cm2 (Ti) |
Typical Gas Flow Rate |
10 cc/min |
External Gas Not Required |
External Gas Not Required |
Gas mixture |
P-10 (Argon-Methane) |
P-10 (Argon-Methane) |
Xe-CO2 |
Efficiency (4p): |
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90Sr/90Y high E Beta |
35% |
32% |
32% |
137Cs Beta + Gamma |
44% |
29% |
30% |
60Co Beta + Gamma |
21% |
11% |
13% |
147Pm low E Beta |
7% |
7% |
12% |
14C low E Beta |
17% |
5% |
4% |
239Pu Alpha |
30% |
11% |
11% |
99Tc low E Beta |
38% |
18% |
20% |
29I low E X-ray |
1% |
1% |
7% |
125I low E X-ray |
1% |
2% |
5% |
57Co X-ray + Gamma |
1% |
1% |
2% |
In addition, a software programs called C-HISTORY and C-MONITOR provides system status, diagnostics, usage, contaminated results, etc., including:
- Automatic transmittal of database at user selected interval (typically, daily at midnight).
- Appends new data to previous file.
- Indicates monitor is unavailable (please wait) during transmission and automatically returns unit to service at completion.
User Badge/Bar Code Identification
User identification is available using standard readers
to provide employee ID for the health physics database.
Magnetic stripe card readers, bar code readers
and keypad entry are available.
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